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  3. 12th Class
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12th Class Mathematics Sample Paper Maths Olympiad Model Paper-8

  • question_answer
    \[\int{\frac{dx}{2\cos ec2x}}\]

    A)  \[\frac{\cos 2x}{4}+c\]             

    B)  \[\frac{\sin 2x}{4}+c\]

    C)  \[-\frac{\sin 2x}{4}+c\]             

    D)  \[-\frac{\cos 2x}{4}+c\]

    E)  None of these

    Correct Answer: D

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